In Pixar’s Cars 2, the alternative fuel used by the World Grand Prix racers is Allinol.
Allinol is presented as a clean, environmentally friendly fuel created for the international World Grand Prix. Its promotion gives the race a global, modern setting and helps connect the competition to the film’s espionage storyline.
The fuel is central to the plot because the criminal mastermind Miles Axlerod secretly manipulates racers who use it. Electromagnetic pulses are used to make the fuel cause dangerous engine failures, creating chaos during the races and damaging its reputation.
Allinol is sometimes confused with the fictional motor-oil, tire, and racing brands that appear elsewhere in the Cars universe. Dinoco, Rust-eze, and Octane Gain are associated with racing characters or sponsorships, but they are not the alternative fuel in Cars 2. The World Grand Prix visits Japan, Italy, and England.